Commit | Line | Data |
---|---|---|
1494a1f6 FB |
1 | Generic USB Properties |
2 | ||
3 | Optional properties: | |
4 | - maximum-speed: tells USB controllers we want to work up to a certain | |
5 | speed. Valid arguments are "super-speed", "high-speed", | |
6 | "full-speed" and "low-speed". In case this isn't passed | |
7 | via DT, USB controllers should default to their maximum | |
8 | HW capability. | |
9 | - dr_mode: tells Dual-Role USB controllers that we want to work on a | |
10 | particular mode. Valid arguments are "host", | |
11 | "peripheral" and "otg". In case this attribute isn't | |
12 | passed via DT, USB DRD controllers should default to | |
13 | OTG. | |
32f2ed86 WW |
14 | - phy_type: tells USB controllers that we want to configure the core to support |
15 | a UTMI+ PHY with an 8- or 16-bit interface if UTMI+ is | |
16 | selected. Valid arguments are "utmi" and "utmi_wide". | |
17 | In case this isn't passed via DT, USB controllers should | |
18 | default to HW capability. | |
b5513ded LJ |
19 | - otg-rev: tells usb driver the release number of the OTG and EH supplement |
20 | with which the device and its descriptors are compliant, | |
21 | in binary-coded decimal (i.e. 2.0 is 0200H). This | |
22 | property is used if any real OTG features(HNP/SRP/ADP) | |
23 | is enabled, if ADP is required, otg-rev should be | |
24 | 0x0200 or above. | |
25 | - hnp-disable: tells OTG controllers we want to disable OTG HNP, normally HNP | |
26 | is the basic function of real OTG except you want it | |
27 | to be a srp-capable only B device. | |
28 | - srp-disable: tells OTG controllers we want to disable OTG SRP, SRP is | |
29 | optional for OTG device. | |
30 | - adp-disable: tells OTG controllers we want to disable OTG ADP, ADP is | |
31 | optional for OTG device. | |
1494a1f6 FB |
32 | |
33 | This is an attribute to a USB controller such as: | |
34 | ||
35 | dwc3@4a030000 { | |
36 | compatible = "synopsys,dwc3"; | |
37 | reg = <0x4a030000 0xcfff>; | |
38 | interrupts = <0 92 4> | |
39 | usb-phy = <&usb2_phy>, <&usb3,phy>; | |
40 | maximum-speed = "super-speed"; | |
41 | dr_mode = "otg"; | |
32f2ed86 | 42 | phy_type = "utmi_wide"; |
b5513ded LJ |
43 | otg-rev = <0x0200>; |
44 | adp-disable; | |
1494a1f6 | 45 | }; |